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- Explain how acetaminopen gives such spectroscopic and chromatographic graph by interpreting the peaks that appeared in the graphs. Fig1. Mass Spectrometric Chromatogram of Acetaminophen (the two graphs) Fig2. IR Spectrograph of AcetaminophenWhich of the following would you expect to elute first from a silica gel column eluted with hexane: B-carotene, chlorophvll A. or chlorophvll B? Provide a brief iustification for vour answerIf the dehydration reaction of an alcohol is successful, what changes would be seen in the IR spectrum for the product compared to the starting material
- Give the reagent or chemical test that would differentiate the following pairs of compounds. Write chemical equations for the reactions. List of Chemical Tests (choose here)I. Halogenation: Bromination with and without lightII. Oxidation: Reaction with Baeyer’s reagent III. Reaction with Ammoniacal Silver Nitrate (AgNO3) or simply Tollen’s reagent a. benzene and ethylbenzeneb. 1-butyne and 2-butynec. 2-methylpentane and 2-methyl-2-pentened. toluene and 1-methylcyclohexeneA student performs a separation by TLC on a silica get plate that results in three spots. Ared spot is measured 23 mm away from the original sample spot, a blue spot is 42 mmaway, and a yellow spot is 49 mm away. The distance from the original spot to where thesolvent stopped is 55 mm.a) Calculate the Rf value for each component in the mixture. (Show your work and reportthe correct number of significant figures.) b) The silica gel plate is polar. Rank the three components in the mixture from lowest tohighest polarity. Explain your answer.A chemist combined chloroform (CHCI,) and acetone (C, H,O) to create a solution where the mole fraction of chloroform, Xchloroform, is 0.187. The densities of chloroform and acetone are 1.48 g/mL and 0.791 g/mL, respectively. Calculate the molarity of the solution. Assume the volumes are additive. molarity: Calculate the molality of the solution. molality: m
- Please help me find the structure based on this IR graph and a boiling point of 90-100°C. 84 80 70 60 50 40 30 20 10 -0 -2+ 4000 3500 3000 2500 2000 1500 1000 450 cm-1 1%A soil sample of 2.65g was analyzed and found to contain 0.0625mg of Ca2+ and 2.45*10^-3g of Mg2+.Classify each analyte based on its level in the soil sampleA chemist is performing a precipitation titration on a 1.00 L sample containing an unknown concentration of the cadmium ion, Cd2+. If it takes 24.52 mL of a 0.250 M solution of Na2CO3 to reach the end point, calculate the concentration of the cadmium ion?
- 1) If you eluted a TLC of a compound using 80% hexanes / 20% ethyl acetate as the solvent and obtained an R; value of 0.5. If you changed the solvent system to 50% hexanes / 50% ethyl acetate, how would the Rf value change? Explain why.Lipids from an organic sample are extracted separately by column chromatography using the ff eluants: 1st eluant - chloroform: methanol: water (6:3:1) 2nd eluant - methanol: chloroform (9:1) 3rd eluant – petroleum ether: ethyl ether (1:1) Test results for each eluate are tabulated below. Identify the possible lipid present in each eluate. Test Reagents 1. KHSO4 2. HNO3,(NH4)3MoO4 3. CHCl3, acetic anhydride, conc. H2SO4 4. -naphthol, conc. H2SO4 5. Hydroxylamine HCl, FeCl3 6. ninhydrin reagent POSSIBLE LIPIDS: Triacylglycerol, cholesterol, sphingomyelin, lecithinChlorophyll is the green pigment in the leaves of the plant, carotene imparts orange coloration while anthocyanin is known as the purple pigment. In one of their laboratory, a group was tasked to confirm the presence of these pigments on a certain leaf. After crushing several leaves, they soak it in isopropyl paper strip was dried and the group got the following measurements from the submerged tip of the paper strip: solvent font - 9.9cm, purple ink -8.6cm, yellowish orange ink - 6.4cm and green ink - 4.2 retention factor of each pigment. (d) Rank each pigment according to their solubility in the given solvent.